A community-based serological study was conducted to analyse the vaccine response in 27 participants. The study involved seropositive (n=13) and seronegative (n=14) participants prior to vaccination. Four seropositive participants had PCR confirmed COVID-19 infections whereas the remaining had asymptomatic cases. Samples were collected after the first dose (mean 18.5 days) and twice after the second dose (20.7 days and 56.3 days).
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